3727305

Information

• Patent Grant
• 3727305

• References
• Source

• Patent Number

  3,727,305

• Date Filed

  Not available

• Date Issued

  Tuesday, April 17, 1973
  51 years ago

• CPC

  • G07F7/086 - by passive credit-cards adapted therefor
  • G06K7/082 - using inductive or magnetic sensors
  • G06K7/085 - metal detectors
  • G06K19/067 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements
  • Y10T29/4913 - Assembling to base an electrical component, e.g., capacitor, etc.

• US Classifications

  • 029 - Metal working
  • 174 - Electricity: conductors and insulators